Macron shook hands with senators and representatives, and pressed his hand to his heart several times before a speech expected to touch on the two countries' shared history and worldwide challenges.

He said he and Macron had developed over the past year "a wonderful friendship" that is "a testament to the enduring friendship that binds our two nations".

"We have worked together for the universal ideals of liberty, tolerance, and equal rights".

Saudi Arabia's foreign Minister Adel al-Jubeir, in a quick reaction to Trump's statement during press briefing along with Macron, said Qatar must pay for the U.S. military presence in Syria if it wants to sustain Washington's support.

Macron warned "we are living in a time of anger and fear" and said now the United States and France must show that democracy is the path forward.

'We are living in a time of anger and fear.'

He said if his demands are not met within 120 days, the United States would withdraw from the deal. "We don't do any business with Iran; we don't care about business with Iran", he said.

"We signed it at the initiative of the United States".

Macron has more sympathy than perhaps any other foreign leader for Trump's arguments that the deal falls short of sealing off Iran's alleged quest for a nuclear weapon - which the French leader vowed before lawmakers that Tehran would "never" be allowed to possess.

On Wednesday night, Macron told reporters that he thought Trump was still inclined to pull out of the Iran deal, but that he felt he'd made some progress with the President. Some of the restrictions on Iran are scheduled to be lifted after 10 and 15 years.

Mr Macron's visit followed a private dinner between the two leaders and their wives at Mount Vernon on Monday night, a joint news conference in the ornate East Room and a state dinner - the first one Mr Trump has hosted as president. We should not abandon it without having something substantial and more substantial instead.

Trump has threatened to tear up worldwide trade deals, scorns the United Nations, accuses USA allies of not pulling their weight, walked away from the Paris climate accord and hates dealing with transnational bodies like the European Union.

"On what can happen in the future we'll see in the future, but there is one deal existing, it's working, it needs to be preserved", the former Italian foreign minister said as she arrived for a donor conference on Syria in Brussels.

Last June, Trump announced that the United States would withdraw from the 2015 Paris accord to mitigate climate change, an agreement that committed the country to cutting its emissions from 26 to 28 percent below 2005 levels by 2025.

He said the rift over the Paris accord was but a "short-term disagreement". Let's face it: "There is no Planet B".

"I'm convinced that if we decide to open our eyes wider, we will be stronger, we will overcome the dangers, we will not let the rampaging work of extreme nationalism shake a world full of hopes for greater prosperity", he said. They want to know what box they [Iran] can operate in, so they can sign long-term contracts and do business in Iran without worrying about US sanctions coming back any day.

Belin thinks that Macron didn't want to single out Trump on that point, but did want to say that "the winds are blowing in that direction for everybody" and that both countries should "try to counter this general global evolution".

"Without reason, without truce, there's no real democracy".

Macron also said that regardless of Trump's decision in May, he had proposed setting up a framework under which they could discuss the JCPOA with Iran, along with three other aspects Trump has taken issue with: the missiles, the "sunset" agreements and Tehran's regional activities.

He also warned against "terrorist propaganda that spreads its fanaticism on the Internet".